Sunday, 4 September 2016

Study 103a

C. Poisson
Gorgiev 100 MT
2010
1st Prize

White wins

1. Ka6! 1. Bd7? Qf4 =; 1. Kb6? Qe3+ = 1... Qc4 2. Bd7! 2. Kb6? Qg8 3. Bd7 Qb8+ = 2... Ka2 3. Kb6 Qd4+ 3... Qf7 4. Bf5 Qf6 5. Kb7 Ka3 6. c7 +- 4. Kb7 Ka3 5. Kb8! Ka4 5... Qd6+ 6. c7! Qxd7 7. Rb6! Qd4 8. Ra6+ Kb4 9. c8=Q +- 6. Rb7 Qh8+ 7. Bc8! Ka5 8. c7 mutual zugzwang


2x2 white cluster

8... Qf8 8... Qe8 9. Rb3! +- mutual zugzwang; 8... Qg8 9. Rb1! +- mutual zugzwang 9. Rb2! mutual zugzwang 9. Rb1? Qg8! mutual zugzwang 10. Rb2 (10. Rd1 Qb3+ =) 10... Qf8! mutual zugzwang 11. Rb3 Qe8! mutual zugzwang 12. Rb7 (12. Rd3 Qb5+ =) 12... Qh8! mutual zugzwang 9... Qh8 10. Rd2 Kb6 11. Rd6+ Kc5 12. Rd8 Qb2+ 13. Bb7 +-

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Related studies: Study 103

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